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CAIE A-Level Physics A2 20.5 Electromagnetic Induction Questions

Practise defining and calculating magnetic flux and flux linkage, explaining induction experiments, and applying Faraday’s and Lenz’s laws to induced e.m.f. and direction.

Syllabus
2028–2030
Course
Physics 9702
Level
A2

Exam points

  • define, calculate and interpret magnetic flux, flux linkage and Phi=BA
  • describe induction experiments and explain changing flux linkage
  • apply Faraday and Lenz laws to calculate induced emf and determine its direction

Covered syllabus points

20.5.1—Magnetic flux as the product of the magnetic flux density and the20.5.2—Φ = BA20.5.3—The concept of magnetic flux linkage20.5.4—Experiments that demonstrate: • that a changing magnetic flux can induce an20.5.5—Faraday’s and Lenz’s laws of electromagnetic induction

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